Product Folder
Sample & Buy
Technical Documents
Tools & Software
Support & Community
LM3269
SNVS793D – NOVEMBER 2011 – REVISED MAY 2015
LM3269 Seamless-Transition Buck-Boost Converter for 3G and 4G RF Power
Amplifiers
1 Features
•1 Operates From a Single Li-Ion Cell: 2.
7 V to 5.
5 V • Adjustable Output
Voltage: 0.
6 V to 4.
2 V • Automatic PFM or PWM Mode Change • 750-mA Maximum Load Capability for
VBATT ≥ 3 V, VOUT = 3.
8 V • 2.
4-MHz (typical) Switching Frequency • Seamless Buck-Boost Mode Transition • Fast Output
Voltage Transition: 1.
4 V to 3 V
in 10 µs • High-Efficiency: 95% typical at VBATT = 3.
7 V,
VOUT = 3.
3 V, at 300 mA • Input Overcurrent Limit • Internal Compensation
2 Applicatio...